The chief of the Defense Security Command (DSC) pledged Wednesday to keep political neutrality amid a probe into allegations that some of its agents had posted online comments in support of the former Lee Myung-bak government.

Lt. Gen. Lee Suk-koo made the remarks during a closed-door parliamentary audit of the command, lawmakers who attended it told reporters.

"I will not heed any inappropriate orders or directives (if I am pressured to engage in political activities)," the commander was quoted by Rep. Lee Tae-kyu of the minor opposition People's Party as saying during the audit.

This photo, taken on Oct. 30, 2017, shows Lt. Gen. Lee Suk-koo, the commander of the Defense Security Command, speaking during a parliamentary audit at the Ministry of National Defense in Seoul. (Yonhap)

The lawmaker added that the DSC chief also pledged to issue directives to his personnel to ensure that they would remain politically neutral.

The DSC has conducted an internal probe and found that it ran an organization, called Sparta, for some two years during the Lee administration from 2008-2013. Sparta agents allegedly posted online comments to back the then-conservative government.

"I understand that there was a problem related to political neutrality," the commander was quoted as saying, referring to the online comments.

During the audit, the lawmakers from the ruling Democratic Party reportedly viewed the online postings as "political interference," while those from the main opposition Liberty Korea Party raised doubts over whether the DSC agents had any political intent while posting their comments. (Yonhap News)